Refrigerator.



M. P. SHEA. REFRIGERATOR.

APPLICATION FILED JULY 16, 1997.

906,131.3. 1 lItnted Dec.8,1908.

hm, M5011 :f i To kall 'whom it may concern:

Be it known that I, MICHAEL P. SHEA, a citizen of the United States,residing at Goldfield, in the county of Esmeralda and Stateofff'*N"cvada, Yhave invented new and usefulA Improvements inRefrigerators, of which the following isa specification.

-ff'=l`his inventionrelates to an improved refrigcrati'ng deviceadapted-to keep and preserve meat, butter, milk, vegetables and otherfood from spoiling without the use ofV in the ground the directincomparatively ing mechanism whereby the receptacle may 'i TheInvention irther consists 1n thenovel be elevated so as to render thecontents thereof readily accessible through a door in said box or c asinand im roved construction, arrangement and com ina'tion of'parts whichwill be hereinafter fully described and particularly pointed out in theclaims.

In the accompanying vdrawing has been illustrated a simple andpreferred. form of the invention; it Ibeing, however, understood that nolimitation is necessarily made to the precise structural details thereinexhibited,` ut that changes, alterations and modifications within thescope of the invention may be resorted to when desired.

In the drawings,- Figure 1 is a front 'elevation of' a .deviceconstructed in accordance.

. with the invention, showing the rece tacle arranged in a cavity in theground. ig. 2 is a vvertical sectional view, showing'the receptacleelevated within the casing. Fig. 3 is a horizontal sectional view takenon the plane indicated by thel line 3-3 in Fig. 1,. Y Correspondingparts in the several figures are denoted by like characters ofreference. y

The casing A of the improved device composed o outer walls 1-1 and innerwalls 2-2 which are properlyspaced apart,

i VSpecicatiox'i of Letters Patent. p v Application lea July 16, 1907.'Serial No.`384,081.

. with suitable shelves srarns Pi i.vrinvr OFFICE.

f.; vin'eislain. P. sHEAQOF GOLDFIELD, NEvADA.

^ -nimmer:miroir..

Patented Dec. s, 190s.

to form an intermediate air space 3 which is rendered impervious orpartially impervious to air and moisture by a non-conducting lining 4 ofasbestos, or other suitable material which is preferably in the form ofsheets secured exteriorly upon the inner walls 2-2. The walls of thecasing are mounted upon a base 5;'and the inner and outer walls, 1-1,2*-2, respectively, sup ort the cap pieces 6 and 7 which are spaced)apart so as to form an air space 8 communicating with the air spacebetween the walls; this construction being readily effected by extendingthe outer walls upwardly above the inner walls. The casing is supportedby means of the base 5 above and adjacent to a cavity 9 in the ground;said cavity being of a cross sectional area as nearly as possible equal'to that of the casing A.

`The base 5 is provided with apertures 10 communicating with the airspace 3 between 1-1 and 2*2 and the outer cap 7 of the casing isprovided with a vent tube 11 through which circulation' of air may bemaintained. l f

The casing A. is provided with a pair of interior, oppositely disposedvertical guide rails 12--12 extending upwardly to the top ofthe casinand downwardly, through the base 5into t e cavity 9 5 said guide railsbeing extended to the bottom of the cavity where theirv lower endsl aresecured in an suitable manner; the base 5 is provided wit 1 a largeopening or aperture 13' for the passage o the guide rails and also forthe assage of a dumb waiter or' receptacle 14 w ich is mounted fortravel u on the Guide rails,

. and provided with lateray ly extending guides or Guards 15 engagingthe rails. The receptac e constituting a dumb Waiter is provided F L6rendering it convenient for the urposes fonwhich it is intended; said.she ves being conveniently .accessible through a door 17 u on the frontpart of the casing. Supported fidi' rotation in the up er part of thecasing is a shaft 18 carryin a rum or Windlass 19 whereupon is woun aflexible element such as a rope 20,- 'one end of which is madefast tothedumb waiter or receptacle' 14 which may., thus 'be raised or lowered;the drum 'carrying shaft being provided with anloperating hand lever orcrank 21 and with a ratchet. wheel 22engaged by a awl 23 whereby reverserotation of the rum may be at 'will prevented.

The operation and advantages of this 'in ward from above.

vention will be readily understood from the foregoing description takenin connection with the drawings hereto annexed. The articles-of food andthe like that are to be preserved are placed on the shelves oftherecepand will be forced upward through the aper- Y tures -10 into theair spaces 3 between the walls of the casing, the relatively warm airoccupying said spaces being ejected through the vent tube 1l'. In likemanner, when the dumb waiter is elevated7 .the space occupied therebywill be iilled with air rushing down- A circulation will thus beestablished every time the dumb-'waiter is raised or lowered, which iseffective in promoting a 'cool and sanitary condition. The air spacesalso serve to maintain a minimum temperature within the casing. By meansof the windlass the receptacle or dumb waiter may be very convenientlyelevated within the casing A when it is desired to have access to thecontents thereof; and the dumb waiter may .in like manner be restored toa position within the cavity 9.

The general construction is simple and inie purexpensive, and theimproved rei'rigerating.

device is-thoroughly .efficient for t poses for'which it is provided.

' I'Iavin thus fully described the invention, what is c aimed as newisz- 1. In a rerigerating device, a casing supv ported above andadjacent to a cavity in the ground7 said casing comprising outer andinner walls and upper and lower caps arranged vporting the casing abovet to form interveningair spaces 'a base supporting the walls andhavingapertures establishing communication between the an' spaces and thecavity in the ground, a vent tube ,connecting the air spaces with thee'xternal atmosphere, guide rails arranged `withe in the casing andextending through the base into the cavity in the ground, are'ceptacleor dumb waiter arranged for travel upon the rails, and hoisting meansfor raising vand lowering the dumbwaiter.. l

2. In a refrigerating device of the 'class de scribed, a casingsupported above and adjacent to a cavity in the ground, said casingbeing constructed with interior air spaces and with a non-conductin'lining,va base supxe cavity and having apertures reglstering with theair spaces, a ventl tube connecting the air spaces with the Vexternalatmosphere, a receptacle or dumb waiter supported for vertical movementwithin the casing and the'cavity; and

hoisting mechanism for adjusting the recepi- -into the cavity, a dumbwaiter'guided upon the rails, and means for hoisting and adjusting thedumb waiter ,the doubled-walled'casing being provided with a doora'iording access to the dumb waiter. 1

In testimony whereof, I affix my signature in presence of twowitnesses'. y MICHAEL P. SHEA. Witnesses:

BERT STEvENsoN, FRED. F. HEYDENFELDT.

